在swift 3中分享mp3文件

我想在收藏視圖單元格中長時間按下時共享mp3文件。我寫了下面的代碼，但它什麼也沒有返回。我是指當我給自己發送電子郵件時。它不包括mp3文件，而且我也看不到whatsapp部分。在swift 3中分享mp3文件

let r = NSURL(fileURLWithPath: temp_url!) 
    //var activityItems: [Any] = [temp_url!] 
    let activityViewController = UIActivityViewController(activityItems: [r], applicationActivities: nil) 
    activityViewController.popoverPresentationController?.sourceView = self.view // so that iPads won't crash 

    // exclude some activity types from the list (optional) 
    let excludeActivities = [UIActivityType.airDrop, UIActivityType.print, UIActivityType.assignToContact, UIActivityType.saveToCameraRoll, UIActivityType.addToReadingList, UIActivityType.postToFlickr, UIActivityType.postToVimeo, UIActivityType.postToFacebook, UIActivityType.message, UIActivityType.postToWeibo] 
    activityViewController.excludedActivityTypes = excludeActivities 

    // present the view controller 
    self.present(activityViewController, animated: true, completion: nil) 


    // exclude some activity types from the list (optional) 
    activityViewController.excludedActivityTypes = [ UIActivityType.airDrop, UIActivityType.postToFacebook ] 

    // present the view controller 
    self.present(activityViewController, animated: true, completion: nil)

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2017-05-18 Emre Önder

「我發現這個帖子斯威夫特：通過whatsapp分享mp3文件，但它也不適用於我。」這是非常無益的。具體而且詳細地說，它不能爲你工作嗎？ –

對不起，我更新了這篇文章。 –

你應該使用URL而不是NSURL在Swift3 –

-1

我用下面的代碼解決它;

if(temp_url != nil){ 
let activityViewController = UIActivityViewController(activityItems: [temp_url!], applicationActivities: nil) 
     activityViewController.popoverPresentationController?.sourceView = self.view // so that iPads won't crash 

     // exclude some activity types from the list (optional) 
     let excludeActivities = [UIActivityType.airDrop, UIActivityType.print, UIActivityType.assignToContact, UIActivityType.saveToCameraRoll, UIActivityType.addToReadingList, UIActivityType.postToFlickr, UIActivityType.postToVimeo, UIActivityType.postToFacebook, UIActivityType.message, UIActivityType.postToWeibo] 
     activityViewController.excludedActivityTypes = excludeActivities 

     // present the view controller 
     self.present(activityViewController, animated: true, completion: nil) 
}

來源

2017-05-18 14:07:19

這樣使用force-unwrap是一個壞主意。 –

你是說temp_url嗎？ –

是的。使用force-unwrap通常是一個糟糕的主意，因爲如果底層的可選項包含nil，則會導致崩潰。我把它叫做「crash-if-nil operator」 –

在swift 3中分享mp3文件

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